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What is the Least Common Multiple of 31850 and 31863?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 31850 and 31863 is 78064350.

LCM(31850,31863) = 78064350

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Least Common Multiple of 31850 and 31863 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31850 and 31863, than apply into the LCM equation.

GCF(31850,31863) = 13
LCM(31850,31863) = ( 31850 × 31863) / 13
LCM(31850,31863) = 1014836550 / 13
LCM(31850,31863) = 78064350

Least Common Multiple (LCM) of 31850 and 31863 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31850 and 31863. First we will calculate the prime factors of 31850 and 31863.

Prime Factorization of 31850

Prime factors of 31850 are 2, 5, 7, 13. Prime factorization of 31850 in exponential form is:

31850 = 21 × 52 × 72 × 131

Prime Factorization of 31863

Prime factors of 31863 are 3, 13, 19, 43. Prime factorization of 31863 in exponential form is:

31863 = 31 × 131 × 191 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 31850 and 31863.

LCM(31850,31863) = 21 × 52 × 72 × 131 × 31 × 191 × 431
LCM(31850,31863) = 78064350